Ory is the largest open source community in the world for cloud software application security. We maintain advanced open source security software solving authentication, authorization, access control, application network security, and delegation. Ory implements a variety of industry and best-practice standards including OAuth 2.0 / OAuth 2.1, OpenID Connect, Zero Trust Networking, Google Zanzibar Policy Framework, FIDO2 U2F, WebAuthn, TOTP, and more.

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has anyone else noticed anything like this with Hydra? it affects 1% of our client_authentication requests to token endpoint

I am not very familiar with the issue, but would you be willing to open a discussion on github for it? since it is a bit more obscure this might be the best way to avoid it getting lost.
<https://github.com/ory/hydra/discussions/new>